Volume : VII, Issue : IX, September - 2017

ANATOMICAL VARIATIONS IN THE ORIGIN OF COMMON CAROTID ARTERY AND THE BRANCHING PATTERN OF THE EXTERNAL CAROTID ARTERY

Dr Rohita Salam, Dr Ks Krishnakumari

Abstract :

 Introduction: The accurate anatomy of the common carotid and external carotid arteries are important in head and neck surgeries. Aim: The present study is a cadaveric study of origin of common carotid artery and the anching pattern of external carotid artery. Materials and methods: This study was conducted in 100 hemi–necks obtained from 50 cadavers. Results: The origins of common carotid arteries were found to be normal. The lengths of right and left common carotid arteries were found to be variable. The levels of bifurcation of common carotid artery was found to be variable with 66.7% bifurcating at the level of superior border of thyroid cartilage, above the thyroid cartilage in 3.3% and below the thyroid cartilage in 30% in adults. In foetus, the common carotid artery bifurcates at the upper border of thyroid cartilage in 60%, above thyroid cartilage in 12.5% and below thyroid cartilage in 27.5%. The superior thyroid artery arose from the common carotid artery in 2% of cases, from external carotid artery in 37% cases and from the bifurcation in 61% cases. In one case superior laryngeal artery arose from the external carotid artery and in another case, it arose from the common carotid artery. In 3 cases of the total 60 hemi–necks of adult group, lingual artery took origin as a common trunk with the facial artery as linguofacial trunk. Conclusion: These vessels show variability and a thorough anatomical knowledge about these vessels would be of help during head and neck surgeries and also during radiological examination.

Keywords :

Article: Download PDF   DOI : 10.36106/ijar  

Cite This Article:

Dr ROHITA SALAM, Dr KS KRISHNAKUMARI, ANATOMICAL VARIATIONS IN THE ORIGIN OF COMMON CAROTID ARTERY AND THE BRANCHING PATTERN OF THE EXTERNAL CAROTID ARTERY, INDIAN JOURNAL OF APPLIED RESEARCH : Volume-7 | Issue-9 | September-2017

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